Section 18 Timer Unit (TMU)
Rev.1.00 Dec. 13, 2005 Page 673 of 1286
REJ09B0158-0100
18.4.2 Input
Capture Function
Channel 2 has an input capture function.
The procedure for using the input capture function is as follows:
1. Use bits TPSC2 to TPSC0 in TCR to set an internal clock as the timer operating clock.
2. Use bits IPCE1 and IPCE0 in TCR to specify use of the input capture function, and whether
interrupts are to be generated when this function is used.
3. Use bits CKEG1 and CKEG0 in TCR to specify whether the rising or falling edge of the
TCLK pin is to be used to set the TCNT value in TCPR2.
When input capture occurs, the TCNT2 value is set in TCPR2 only when the ICPF bit in TCR2 is
0. A new DMAC transfer request is not generated until processing of the previous request is
finished.
Figure 18.7 shows the operation timing when the input capture function is used (with TCLK rising
edge detection).
TCOR
H'0000 0000
TCLK
TCPR2
TICPI2
TCNT value
TCOR value set in TCNT
on underflow
TCNT value set
Time
Figure 18.7 Operation Timing when Using Input Capture Function
Summary of Contents for SH7780 Series
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Page 82: ...Section 1 Overview Rev 1 00 Dec 13 2005 Page 32 of 1286 REJ09B0158 0100 ...
Page 122: ...Section 3 Instruction Set Rev 1 00 Dec 13 2005 Page 72 of 1286 REJ09B0158 0100 ...
Page 146: ...Section 4 Pipelining Rev 1 00 Dec 13 2005 Page 96 of 1286 REJ09B0158 0100 ...
Page 196: ...Section 6 Floating Point Unit FPU Rev 1 00 Dec 13 2005 Page 146 of 1286 REJ09B0158 0100 ...
Page 292: ...Section 9 L Memory Rev 1 00 Dec 13 2005 Page 242 of 1286 REJ09B0158 0100 ...
Page 492: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Dec 13 2005 Page 442 of 1286 REJ09B0158 0100 ...
Page 674: ...Section 15 Clock Pulse Generator CPG Rev 1 00 Dec 13 2005 Page 624 of 1286 REJ09B0158 0100 ...
Page 692: ...Section 16 Watchdog Timer and Reset Rev 1 00 Dec 13 2005 Page 642 of 1286 REJ09B0158 0100 ...
Page 726: ...Section 18 Timer Unit TMU Rev 1 00 Dec 13 2005 Page 676 of 1286 REJ09B0158 0100 ...
Page 1032: ...Section 25 Audio Codec Interface HAC Rev 1 00 Dec 13 2005 Page 982 of 1286 REJ09B0158 0100 ...
Page 1150: ...Section 28 General Purpose I O GPIO Rev 1 00 Dec 13 2005 Page 1100 of 1286 REJ09B0158 0100 ...
Page 1184: ...Section 29 User Break Controller UBC Rev 1 00 Dec 13 2005 Page 1134 of 1286 REJ09B0158 0100 ...
Page 1266: ...Section 31 Electrical Characteristics Rev 1 00 Dec 13 2005 Page 1216 of 1286 REJ09B0158 0100 ...
Page 1328: ...Appendix Rev 1 00 Dec 13 2005 Page 1278 of 1286 REJ09B0158 0100 ...
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